O
Oscar Leonardo García-Navarrete
Researcher at National University of Colombia
Publications - 6
Citations - 500
Oscar Leonardo García-Navarrete is an academic researcher from National University of Colombia. The author has contributed to research in topics: Machine vision & Normalization (sociology). The author has an hindex of 3, co-authored 4 publications receiving 441 citations.
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Journal ArticleDOI
Recent Advances and Applications of Hyperspectral Imaging for Fruit and Vegetable Quality Assessment
D. Lorente,Nuria Aleixos,Juan Gómez-Sanchis,Sergio Cubero,Oscar Leonardo García-Navarrete,José Blasco +5 more
TL;DR: The different technologies available to acquire the images and their use for the non-destructive inspection of the internal and external features of these products are explained, with details of the statistical techniques most commonly used for this task.
Journal ArticleDOI
Optimised computer vision system for automatic pre-grading of citrus fruit in the field using a mobile platform
Sergio Cubero,Nuria Aleixos,Francisco Albert,Antonio Torregrosa,C. Ortiz,Oscar Leonardo García-Navarrete,José Blasco +6 more
TL;DR: In this paper, a computer vision system mounted on a mobile platform where workers place the harvested fruits, that was specially designed for sorting fruit in the field, was used to analyze fruit color and size at a speed of eight fruits per second.
Journal ArticleDOI
Real-time Inspection of Fruit by Computer Vision on a Mobile Harvesting Platform under Field Conditions
Sergio Cubero,Enrique Moltó,Abelardo Gutierrez,Nuria Aleixos,Oscar Leonardo García-Navarrete,Florentino Juste,José Blasco +6 more
TL;DR: A computer vision system installed on a harvesting machine developed jointly by IVIA and a Spanish enterprise is described in this article, where hand pickers directly drop the fruit as they collect it, which results in an important increase of productivity.
Journal ArticleDOI
Preliminary study of drying of natural coffee by cyclical pressure changes
Alfonso Parra-Coronado,Oscar Leonardo García-Navarrete,Francy Alejandra Vanegas-Izquierdo,José Alfredo Gamboa-Gamboa,Andrés Felipe González-Mora,David Andrés Ramirez-González +5 more
TL;DR: In this article, the authors carried out preliminary studies of drying of natural coffee by implementing a cyclic pressure changes (CPCD) dryer, comparing it with solar drying and with a mechanical drying system by forced convection of low-temperature air.
Design proposal of a wireless sensor and actuator network for irrigation, based on Internet of Things technology
TL;DR: A detailed selection of IoT technologies for the design of an ambient humidity monitoring infrastructure to control crop irrigation and the possibility of remote connection with the LoRa protocol and the handling and management of information from different crop areas through the GUI on the Raspberry Pi are presented.